Platform-specific functions

The built-in functions in this section are related to C-library functions that are z/OS® specific. The full description of each function can be found in z/OS XL C/C++ Runtime Library Reference.

Table 1. Platform-specific built-in functions
Built-In Function	Header File
`cds()`	`stdlib.h`
`cs()`	`stdlib.h`
Note: `cds()` and `cs()` are masking macros. The system header expands them to the `__cds` and `__cs`. It is advisable to use the hardware functions instead of the library functions whenever possible. For more information, see Table 1.